deep diving

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InfoDeep diving has different meanings depending on the context.

In theory, liquid breathing could assist in the treatment of patients with severe pulmonary or cardiac trauma, especially in pediatric cases.Liquid breathing has also been proposed for use in deep diving and space travel.Despite some recent advances in liquid ventilation, a standard mode of application has not been established yet.…

Some species had larger bladed teeth to attack large animals.The eyes were very large, probably for deep diving.The neck was short and later species had a rather stiff trunk.…

Deep diving can mean something else in the commercial diving field.

Deep diving has more hazards and greater risk than basic open water diving.

Deeper reefs can also be explored, but repeated breath-holding to dive to those depths limits the number of practitioners, and raises the bar on the required fitness and skill level.Deep diving should only be done using a buddy system.…

The Mod 0 configuration was designed for launch from helicopters or fixed-wing aircraft, and the Mod 1 configuration was for helicopters only.Both were electrically driven and deep-diving, but had relatively short range.They were classified as obsolete in the 1960s.…

The Mark 48 and its improved Advanced Capability (ADCAP) variant are American heavyweight submarine-launched torpedoes.They were designed to sink deep-diving nuclear-powered submarines and high-performance surface ships.The Mk-48 torpedo was designed at the end of the 1960s to keep up with the advances in Soviet submarine technology.…

They try out the dangerous challenge of free diving - deep diving without breathing apparatus.Next Jack takes the team on a kayaking trip down the remote volcanic coastline, ending up in a night on a deserted beach.…

Most research had been focused on the possibility of masking signals, interference with mating calls, and similar biological functions.Deep diving marine mammals were species of concern, but very little definitive information was known.In 1995 a comprehensive book on the relation between marine mammals and noise had been published, and it did not even mention strandings.…

Usually the two are combined, as the procedures must be adapted to suit the equipment, and in some cases the equipment is needed to facilitate the procedures.The equipment used for deep diving depends on both the depth and the type of diving.Scuba is limited to equipment that can be carried by the diver, or is easily deployed by the dive team, while surface supplied diving equipment can be more extensive, and much of it stays above the water where it is operated by the support team.…

On July 12, 1986, Ballard and his team returned on board Atlantis II to make the first detailed study of the wreck.This time, he brought Alvin, a deep diving submersible that could hold a small crew.Alvin was accompanied by Jason Junior, a small remotely operated vehicle that could fit through small openings to see into the ship's interior.…

This project created a World Record in deep diving bullion recovery which stands to this day.A further 29 bars were brought up in 1986 by the Consortium, bringing the total to 460, leaving five unaccounted for.…

The underwater navigation through the cave system may be difficult and exit routes may be at considerable distance, requiring the diver to have sufficient breathing gas to make the journey.The dive may also be deep, resulting in potential deep diving risks.Visibility can vary from nearly unlimited to low, or non-existent, and can go from one extreme to the other in a single dive.…

They might also have been used to increase stability.The relatively large eyes of the Cryptocleididae have been seen as an adaptation to deep diving.Traditionally, it was assumed that extinct reptile groups were cold-blooded like modern reptiles.…

Beaked whales are often seen surfacing synchronously, but asynchronous surfacing has also been observed.Deep-diving mammals face a number of challenges related to extended breath holding and hydrostatic pressure.Cetaceans and pinnipeds that prolong apnea must optimize the size and use of their oxygen stores, and they must deal with the accumulation of lactic acid due to anaerobic metabolism.…

In the event of an emergency the diver cannot make an immediate ascent to the surface without risking decompression sickness.All of these considerations result in the amount of breathing gas required for deep diving being much greater than for shallow open water diving.The diver needs a disciplined approach to planning and conducting dives to minimise these additional risks.…

Marine mammals are able to dive for long periods of time.Both pinnipeds and cetaceans have large and complex blood vessel systems which serve to store oxygen to support deep diving.Other important reservoirs include muscles, blood, and the spleen which all have the capacity to hold a high concentration of oxygen.…

Sheppard proposed Sun-orbiting space colonies, interplanetary and interstellar spaceships ought to be manufactured of concrete.There have also been proposals for deep-diving submarines constructed of concrete.Alan Weisman in The World Without Us (2007) noted that anthropic rocks of all kinds, among other artifacts, will exist far into our planet's future even should our species disappear "tomorrow".…

Power is supplied by a magnesium/silver-chloride sea water battery.The propulsion method combines high speed, deep diving, agility and low noise levels.The weapon is provided with target and environmental information by the launching platform.…

Sea lions lack this, but have very sensitive underwater directional hearing and exceptional vision in low-light conditions.Both of these species are trainable and capable of repetitive deep diving.As of the late 1990s, about 140 marine mammals were part of the program.…